航空用AA7175锻件残余应力分布及冶金细化的创新方法

IF 12.2 1区 工程技术 Q1 MECHANICS
Kadiata Ba, Sasan Sattarpanah Karganroudi, A. Aminzadeh, M. Javidani, M. S. Meiabadi
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引用次数: 0

摘要

本研究基于精益制造理念,提出了一种新的锻造AA7175残余应力分布方法,以取代和简化制造过程。AA7175合金是一种用于航空工业的淬火敏感材料,它受到振动和循环载荷导致疲劳失效。通常,昂贵的后处理操作,如喷丸强化,用于修改零件表面的RS。考虑到该操作通常是手动执行的并且成本很高,工业部门一直在寻找简化该过程的替代方案。研究发现,淬火和T74时效可以通过在零件表面形成压缩RS而有利于改变RS的分布。拟议的热处理允许去除喷丸工艺,有助于降低与制造过程相关的成本,并提高生产质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Innovative Approach to Improving Residual Stress Distribution and Metallurgical Refinement of Forged AA7175 Applied in the Aeronautical Industry
In this study, a novel approach for residual stress (RS) distribution on forged AA7175 is considered to replace and simplify the manufacturing process, based on the lean manufacturing concept. AA7175 alloy is a quench-sensitive material applied in the aeronautics industry, which is subjected to vibration and cyclic loads leading to fatigue failure. Generally, costly postprocessing operations, such as shot peening, are used to modify RS on the surfaces of parts. Considering the fact that this operation is usually performed manually and is costly, the industrial sectors have been searching for an alternative to simplify the process. Here, quenching and T74 aging are found to advantageously modify RS distribution by forming compressive RS on parts’ surface layers. The proposed heat treatment allows for the removal of the shot-peening process, helping to reduce the costs associated with the manufacturing process and to increase production quality.
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来源期刊
CiteScore
28.20
自引率
0.70%
发文量
13
审稿时长
>12 weeks
期刊介绍: Applied Mechanics Reviews (AMR) is an international review journal that serves as a premier venue for dissemination of material across all subdisciplines of applied mechanics and engineering science, including fluid and solid mechanics, heat transfer, dynamics and vibration, and applications.AMR provides an archival repository for state-of-the-art and retrospective survey articles and reviews of research areas and curricular developments. The journal invites commentary on research and education policy in different countries. The journal also invites original tutorial and educational material in applied mechanics targeting non-specialist audiences, including undergraduate and K-12 students.
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